Swivel chair



FIG. 1 is a front perspective view of a swivel chair embodying my new design.

FIG. 2 is a side perspective view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a front perspective view similar to FIG. 1 of a modification of my new design in which the arms are covered with upholstering material.

FIG. 5 is a side perspective view thereof.

FIG. 6 is a top plan view thereof.

The bottom surface of the chair seat in both forms of the design is plain. 

The ornamental design for a swivel chair, as shown and described. 